242
FNCA52 TJSJ 231930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST FRI OCT 23 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-240800-
SOUTHEAST COASTAL PLAINS-
330 PM AST FRI OCT 23 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 60 60 40
TEMP (24H TREND) 75 (-2) 90 (+1) 75 91
RH % (24H TREND) 95 (+5) 61 (-4) 96 61
WIND 20FT/EARLY(MPH) E 12 E 14 E 11 E 14
WIND 20FT/LATE(MPH) E 11 SE 14 E 11 SE 14
MIXING HGT(FT-AGL/MSL) 4460 4460
TRANSPORT WND (MPH) SE 16 SE 16
VENT RATE (KT-FT) 62440 62440
DISPERSION 5 5
DSI 5 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-240800-
SOUTHERN HILLS-
330 PM AST FRI OCT 23 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS TSTMS
CHANCE PRECIP (%) 30 50 40 50
TEMP (24H TREND) 72 (-3) 88 (+3) 72 88
RH % (24H TREND) 99 (+7) 65 (-4) 98 65
WIND 20FT/EARLY(MPH) E 11 SE 12 SE 10 SE 12
WIND 20FT/LATE(MPH) E 11 SE 12 E 10 SE 12
MIXING HGT(FT-AGL/MSL) 5340 5130
TRANSPORT WND (MPH) SE 16 SE 17
VENT RATE (KT-FT) 74760 76950
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-240800-
NORTH COASTAL PLAINS-
330 PM AST FRI OCT 23 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 10 70 20 70
TEMP (24H TREND) 74 (-3) 91 (+1) 74 92
RH % (24H TREND) 96 (+6) 60 (-5) 97 59
WIND 20FT/EARLY(MPH) SE 10 SE 13 SE 10 SE 13
WIND 20FT/LATE(MPH) SE 10 SE 14 SE 10 SE 14
MIXING HGT(FT-AGL/MSL) 5550 5660
TRANSPORT WND (MPH) SE 13 SE 13
VENT RATE (KT-FT) 61050 62260
DISPERSION 5 5
DSI 3 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-240800-
NORTHERN HILLS-
330 PM AST FRI OCT 23 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 0 80 30 70
TEMP (24H TREND) 72 (-3) 90 (+1) 72 91
RH % (24H TREND) 98 (+6) 59 (-6) 98 59
WIND 20FT/EARLY(MPH) SE 9 SE 10 SE 9 SE 10
WIND 20FT/LATE(MPH) SE 5 SE 13 SE 5 SE 13
MIXING HGT(FT-AGL/MSL) 6210 5880
TRANSPORT WND (MPH) SE 12 SE 13
VENT RATE (KT-FT) 62100 64680
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-240800-
WEST COAST-
330 PM AST FRI OCT 23 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 0 60 40 40
TEMP (24H TREND) 74 (-1) 92 (+2) 75 92
RH % (24H TREND) 96 (+4) 64 (-3) 95 65
WIND 20FT/EARLY(MPH) SE 13 SE 14 SE 12 SE 14
WIND 20FT/LATE(MPH) E 12 SE 14 E 12 SE 16
MIXING HGT(FT-AGL/MSL) 4860 4830
TRANSPORT WND (MPH) SE 17 SE 18
VENT RATE (KT-FT) 72900 77280
DISPERSION 5 5
DSI 5 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-240800-
EASTERN INTERIOR-
330 PM AST FRI OCT 23 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 40 60 50 60
TEMP (24H TREND) 73 (-3) 89 (+1) 73 90
RH % (24H TREND) 98 (+5) 62 (-4) 99 62
WIND 20FT/EARLY(MPH) SE 12 SE 13 SE 12 SE 13
WIND 20FT/LATE(MPH) SE 12 SE 13 SE 12 SE 13
MIXING HGT(FT-AGL/MSL) 5580 5670
TRANSPORT WND (MPH) SE 16 SE 16
VENT RATE (KT-FT) 78120 79380
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-240800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST FRI OCT 23 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 60 60 60
TEMP (24H TREND) 71 (-3) 87 (+4) 71 87
RH % (24H TREND) 99 (+2) 66 (-6) 100 66
WIND 20FT/EARLY(MPH) SE 10 SE 11 SE 10 SE 11
WIND 20FT/LATE(MPH) SE 10 SE 11 SE 10 SE 11
MIXING HGT(FT-AGL/MSL) 3750 3800
TRANSPORT WND (MPH) SE 16 SE 17
VENT RATE (KT-FT) 52500 57000
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-240800-
CENTRAL MOUNTAIN RANGE-
330 PM AST FRI OCT 23 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 0 50 40 60
TEMP (24H TREND) 70 (-2) 87 (+5) 70 88
RH % (24H TREND) 99 (+5) 65 (-7) 99 65
WIND 20FT/EARLY(MPH) SE 8 SE 10 SE 6 SE 10
WIND 20FT/LATE(MPH) SE 6 SE 10 SE 6 SE 12
MIXING HGT(FT-AGL/MSL) 6100 5800
TRANSPORT WND (MPH) SE 15 SE 16
VENT RATE (KT-FT) 79300 81200
DISPERSION 5 5
DSI 2 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-240800-
CAYEY MOUNTAIN RANGE-
330 PM AST FRI OCT 23 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 60 60 50
TEMP (24H TREND) 72 (-1) 85 (+2) 71 85
RH % (24H TREND) 99 (+3) 69 (-1) 100 68
WIND 20FT/EARLY(MPH) SE 9 SE 10 SE 8 SE 10
WIND 20FT/LATE(MPH) SE 9 SE 10 SE 8 SE 10
MIXING HGT(FT-AGL/MSL) 4250 4470
TRANSPORT WND (MPH) SE 16 SE 17
VENT RATE (KT-FT) 59500 67050
DISPERSION 5 5
DSI 5 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-240800-
VIEQUES-
330 PM AST FRI OCT 23 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS TSTMS
CHANCE PRECIP (%) 50 50 60 50
TEMP (24H TREND) 78 (-1) 91 (+2) 78 91
RH % (24H TREND) 88 (+2) 59 (-4) 89 60
WIND 20FT/EARLY(MPH) SE 16 SE 16 SE 14 SE 16
WIND 20FT/LATE(MPH) SE 17 SE 14 SE 16 SE 16
MIXING HGT(FT-AGL/MSL) 3260 3170
TRANSPORT WND (MPH) SE 18 SE 18
VENT RATE (KT-FT) 52160 50720
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-240800-
CULEBRA-
330 PM AST FRI OCT 23 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS TSTMS
CHANCE PRECIP (%) 30 50 50 50
TEMP (24H TREND) 79 (-2) 92 (+3) 80 92
RH % (24H TREND) 86 (+3) 59 (-6) 87 60
WIND 20FT/EARLY(MPH) SE 16 SE 16 SE 16 SE 17
WIND 20FT/LATE(MPH) SE 17 SE 14 SE 17 SE 16
MIXING HGT(FT-AGL/MSL) 3230 3270
TRANSPORT WND (MPH) SE 21 SE 21
VENT RATE (KT-FT) 58140 58860
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-240800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST FRI OCT 23 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 30 40 40 50
TEMP (24H TREND) 76 (-1) 92 (+2) 76 92
RH % (24H TREND) 95 (+7) 59 (-5) 93 60
WIND 20FT/EARLY(MPH) E 18 E 18 E 17 E 18
WIND 20FT/LATE(MPH) E 17 SE 18 E 16 SE 18
MIXING HGT(FT-AGL/MSL) 4750 4410
TRANSPORT WND (MPH) SE 18 SE 20
VENT RATE (KT-FT) 76000 74970
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-240800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST FRI OCT 23 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 40 40 30 40
TEMP (24H TREND) 78 (-2) 88 (+1) 77 88
RH % (24H TREND) 88 (+2) 64 (-5) 89 65
WIND 20FT/EARLY(MPH) SE 16 SE 17 SE 17 SE 17
WIND 20FT/LATE(MPH) SE 17 SE 16 SE 17 SE 17
MIXING HGT(FT-AGL/MSL) 3400 3350
TRANSPORT WND (MPH) SE 22 SE 22
VENT RATE (KT-FT) 64600 63650
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-240800-
ST CROIX-
330 PM AST FRI OCT 23 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 30 30 20 40
TEMP (24H TREND) 78 (-2) 91 (+3) 78 91
RH % (24H TREND) 91 (+1) 65 (-5) 92 64
WIND 20FT/EARLY(MPH) E 14 SE 16 E 16 SE 17
WIND 20FT/LATE(MPH) E 16 SE 14 SE 16 SE 16
MIXING HGT(FT-AGL/MSL) 4310 4730
TRANSPORT WND (MPH) SE 20 SE 21
VENT RATE (KT-FT) 73270 85140
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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